You are not alone. Battlenet installed an update Tuesday morning. Since then, I log on and within about 2 minutes, I crash. I have tried everything. Reload graphics drivers. Uninstall entire game. Disabled background programs. Scan and repair. Indeed, I opened a ticket with Blizzard to resolved and was eventually told to seek local tech support! Everything. Still crashes every single time. Running windows 7 64 bit. This has never happened going back to last May. Anyone else besides us having the same issue?